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Structural dynamics of a metal-organic framework induced by CO2 migration in its non-uniform porous structure
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Zhao, Pu, Fang, Hong, Mukhopadhyay, Sanghamitra, Li, Aurelia, Rudić, Svemir, McPherson, Ian J., Tang, Chiu C., Fairen-Jimenez, David, Tsang, S.C. Edman and Redfern, Simon A.T. (2019) Structural dynamics of a metal-organic framework induced by CO2 migration in its non-uniform porous structure. Nature Communications, 10 . 999. doi:10.1038/s41467-019-08939-y ISSN 2041-1723.
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Official URL: https://doi.org/10.1038/s41467-019-08939-y
Abstract
Stimuli-responsive behaviors of flexible metal-organic frameworks (MOFs) make these materials promising in a wide variety of applications such as gas separation, drug delivery, and molecular sensing. Considerable efforts have been made over the last decade to understand the structural changes of flexible MOFs in response to external stimuli. Uniform pore deformation has been used as the general description. However, recent advances in synthesizing MOFs with non-uniform porous structures, i.e. with multiple types of pores which vary in size, shape, and environment, challenge the adequacy of this description. Here, we demonstrate that the CO -adsorption-stimulated structural change of a flexible MOF, ZIF-7, is induced by CO migration in its non-uniform porous structure rather than by the proactive opening of one type of its guest-hosting pores. Structural dynamics induced by guest migration in non-uniform porous structures is rare among the enormous number of MOFs discovered and detailed characterization is very limited in the literature. The concept presented in this work provides new insights into MOF flexibility.
Item Type: | Journal Article | |||||||||
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Subjects: | Q Science > QD Chemistry | |||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | |||||||||
SWORD Depositor: | Library Publications Router | |||||||||
Library of Congress Subject Headings (LCSH): | Organometallic compounds -- Structure, Gases -- Separation, Drug delivery systems | |||||||||
Journal or Publication Title: | Nature Communications | |||||||||
Publisher: | Nature Publishing Group | |||||||||
ISSN: | 2041-1723 | |||||||||
Official Date: | 1 March 2019 | |||||||||
Dates: |
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Volume: | 10 | |||||||||
Article Number: | 999 | |||||||||
DOI: | 10.1038/s41467-019-08939-y | |||||||||
Status: | Peer Reviewed | |||||||||
Publication Status: | Published | |||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||
Date of first compliant deposit: | 9 April 2019 | |||||||||
Date of first compliant Open Access: | 12 April 2019 | |||||||||
RIOXX Funder/Project Grant: |
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